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          优雅的使用 element-ui 中的 table 组件
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<p>参考原文<a target="_blank" rel="noopener" href="https://juejin.im/post/5a100d09f265da4324800807">优雅的使用 element-ui 中的 table 组件</a></p>
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<h3 id="动态的创建表头以及填充表格内容"><a href="#动态的创建表头以及填充表格内容" class="headerlink" title="动态的创建表头以及填充表格内容"></a>动态的创建表头以及填充表格内容</h3><p>后台返回数据</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br></pre></td><td class="code"><pre><span class="line">data () &#123;</span><br><span class="line">  return &#123;</span><br><span class="line">    dataList: [</span><br><span class="line">      &#123;a: 1, b: 60.625, c: 1, d: 1, e: 100, f: 100&#125;, </span><br><span class="line">      &#123;a: 0, b: -38.375, c: 0.05, d: 2, e: 1, f: 1&#125;,</span><br><span class="line">      &#123;a: 0.0101, b: -37.375, c: 0.05, d: 3, e: 2, f: 2&#125;</span><br><span class="line">    ],</span><br><span class="line">    dataHeader: []</span><br><span class="line">  &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<p>预览效果<br><img src="/2019/01/16/2019-01-16-vue-elementui-table/lALPDgQ9qdq3AcbM2c0DVQ_853_217.png" alt="Alt text"></p>
<p>其中表头部分并不是固定的,名称和列数都是后台返回, 所以表头需要动态的去获取</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">mounted () &#123;</span><br><span class="line">  &#x2F;&#x2F; 提炼表头</span><br><span class="line">  let arr &#x3D; []</span><br><span class="line">  for (let key in this.dataList) &#123;</span><br><span class="line">    for(let j in this.dataList[key])&#123;</span><br><span class="line">      arr.push(j)</span><br><span class="line">    &#125;</span><br><span class="line">  &#125;</span><br><span class="line"></span><br><span class="line">  &#x2F;&#x2F; 将重复的表头去掉</span><br><span class="line">  this.dataHeader &#x3D; this.$options.methods.unique(arr);</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<p>最后页面显示的代码也与官方文档中有所不同了</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">&lt;el-table :data&#x3D;&quot;dataList&quot;&gt;</span><br><span class="line">  &lt;el-table-column v-for&#x3D;&quot;(item, key) in dataHeader&quot; :label&#x3D;&quot;item&quot; :key&#x3D;&quot;key&quot;&gt;</span><br><span class="line">    &lt;template slot-scope&#x3D;&quot;scope&quot;&gt;</span><br><span class="line">      &#123;&#123;dataList[scope.$index][item]&#125;&#125;</span><br><span class="line">    &lt;&#x2F;template&gt;</span><br><span class="line">  &lt;&#x2F;el-table-column&gt;</span><br><span class="line">&lt;&#x2F;el-table&gt;</span><br></pre></td></tr></table></figure>

<p>完整的vue组件结构如下图</p>
<p><img src="/2019/01/16/2019-01-16-vue-elementui-table/lALPDgQ9qdrPkbbNA4LNA_Y_1014_898.png" alt="Alt text"></p>

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